From Shareable’s “The Sharing Economy Back to School Survival Guide”:

Repair and Maker Spaces
Maybe your toaster always burns the toast, or your clock is running slow, or the lid on your super-secret stash box is always askew. Don’t toss it, fix it instead. Try the nearest FixIt Clinic, TechShop, or HackerSpace and figure out how to fix or make things. You’ll meet a ton of people making awesome things (robots, wearable electronics, 3-D printed food, etc.), save money, keep stuff out of the landfill, and forge a new relationship with the world around you. 

Money
For extra cash, become a sharing economy “micro-entrepreneur.” Work on your own time doing what you want to do.…Try Skillshare, Uniiverse and Vayable to create classes, tours, hikes, and more to sell to the public. As a micro-entrepreneur, you name your price and time, so working around school schedules is no problem.…

Entertainment

There’s no shortage of social events in college, but if you want to go beyond keg stands, there’s hope. Uniiverse, Vayable and Skillshare are great for making money, but you can also create a social life around them. Use them to find group museum trips, guitar lessons, film discussion groups, day trips, outdoor adventures, tech gatherings, bicycle safety classes, and more. A huge variety of experiences is being offered for the community by the community.

Outside Traditional Learning
Now that you’re ready for a totally shareable college experience, we need to point something out. The value and relevance of a college education is increasingly being scrutinized, and free educational resources are available to everyone with access to the Internet. If you really want to save, sidestep or augment criminally expensive higher ed and educate yourself. For tips on how to get started, check out Learning Outside the Academy and this Q&A with Anya Kamenetz, author of DIY U: Edupunks, Edupreneurs, and the Coming Transformation of Higher Education.